Information processing device, information processing method, and program

Abstract

If a post on social media is found that could lead to bullying, information regarding that post will be notified to the appropriate recipient. [Solution] The information processing device includes an acquisition means for acquiring posting information of a first user, a determination means for determining whether or not the posting information of the first user constitutes defamation, and a notification means for making a first notification to a second user who is pre-associated with the first user, based on the determination result by the determination means. The notification means determines the recipient of the notification according to the number of times the first user has made a posting that constitutes defamation.

Description

Technical Field

[0001] The present invention relates to an information processing apparatus, an information processing method, and a program.

Background Art

[0002] Due to the spread of SNS (Social Networking Service), the number of cyberbullying cases on the Internet has been increasing year by year. Patent Document 1 discloses an electronic bulletin board monitoring system that can prevent a monitor from immediately posting on an electronic bulletin board when there is posting information inappropriate for posting on the bulletin board and prevent inappropriate posting information from being posted for a long time.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Parents of children who use SNS feel anxious about cyberbullying among their children. However, when there is an inappropriate post such as slander that leads to bullying, if the monitor of the SNS only deletes the inappropriate post, there is a risk that the parent may not notice even if their child becomes a perpetrator or a victim.

[0005] Therefore, an object of the present invention is to provide an information processing apparatus capable of notifying appropriate notification destinations of information related to a post when there is a post that leads to bullying on SNS.

Means for Solving the Problems

[0006] The information processing device according to the present invention is characterized by comprising: acquisition means for acquiring posted information of a first user; determination means for determining whether or not the posted information of the first user constitutes defamation; and notification means for making a first notification to a second user who is pre-associated with the first user, based on the determination result by the determination means. [Effects of the Invention]

[0007] According to the present invention, when a post that leads to bullying is made on social media, it is possible to notify the appropriate recipient of information regarding the post. [Brief explanation of the drawing]

[0008] [Figure 1] This diagram illustrates the configuration of the notification system according to Embodiment 1. [Figure 2] This diagram illustrates the hardware configuration of the server and terminal. [Figure 3] This diagram illustrates the functional configuration of the server and terminal according to Embodiment 1. [Figure 4] This flowchart illustrates the notification process for posts that constitute defamation or libel. [Figure 5] This diagram illustrates the configuration of the notification system according to Embodiment 2. [Figure 6] This diagram illustrates the functional configuration of a terminal according to Embodiment 2. [Modes for carrying out the invention]

[0009] <Embodiment 1> Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a diagram illustrating the configuration of a notification system according to Embodiment 1. The notification system according to Embodiment 1 includes a server 100, a terminal 200, and a terminal 300. Server 100 is an information processing device according to the present invention. This is one example.

[0010] Server 100 is a management server that provides SNS services and accepts posts from multiple users. Server 100 accepts posts from posters (equivalent to the first user). Server 100 can make the content of posts from posters public to SNS users or send it to specific users designated by the poster.

[0011] Furthermore, the server 100 determines whether the content posted by the poster constitutes defamation. Based on the determination result, the server 100 sends a predetermined notification regarding the poster's post to a user previously associated with the poster (corresponding to a second user). For example, if the poster makes a post 210 that constitutes defamation of another person, the server 100 sends a notification 310 to the user previously associated with the poster, urging them to stop posting because the poster is engaging in defamation.

[0012] Terminal 200 is the terminal used by the poster to post to the social networking service (SNS). Terminal 300 is the terminal used by users who receive notifications from server 100 to receive those notifications. Users who receive notifications from server 100 are, for example, users who are pre-associated with the poster. Users who are pre-associated with the poster are also referred to as the poster's parent user below. The poster's parent user can be any user who is in the position of a guardian of the poster. The poster's parent user can be, for example, a user who is set up by the parental control function to restrict the use of terminal 200 used by the poster.

[0013] Figure 2 illustrates the hardware configuration of server 100 and terminal 300. The hardware configuration of terminal 200 is the same as that of terminal 300, so its explanation is omitted.

[0014] Server 100 comprises a CPU 101, ROM (Read Only Memory) 102, RAM (Random Access Memory) 103, storage unit 104, display unit 105, operation unit 106, and communication unit 107. Each component of Server 100 can communicate with each other via bus 108.

[0015] The CPU 101 is a processor that controls the entire server 100. By reading the computer programs stored in the ROM 102 and the storage unit 104 into the RAM 103 and executing them, the CPU 101 executes various processes performed by the server 100.

[0016] The ROM 102 is a non-volatile memory that stores basic programs such as an operating system (OS) and initial data. The RAM 103 is a volatile memory used as a storage area for loading programs, a working area for executing programs, and a buffer for temporarily holding data.

[0017] The storage unit 104 is, for example, a hard disk drive or a memory card built-in or externally attached to the server 100. The storage unit 104 stores computer programs for realizing the functions of the server 100. The storage unit 104 stores posting information from a poster. The storage unit 104 also stores and associates a poster and a poster parent user.

[0018] The display unit 105 is, for example, a liquid crystal display and an LED display. The display unit 105 displays a user interface for a user to give instructions to the server 100. The operation unit 106 receives operations on the server 100. The operation unit 106 is an operation member such as a keyboard, a mouse, and a touch panel.

[0019] The communication unit 107 is a communication interface for communicating with external devices such as the terminal 200 and the terminal 300 via the Internet or the like. The communication unit 107 can receive posting information from a poster from the terminal 200. Further, when a posting from a poster constitutes slander, the communication unit 107 can send a notification to the terminal 300 of the notified user.

[0020] The terminal 300 may be any device that can connect to the server 100 and use the SNS. For example, the terminal 300 is a smartphone, a tablet, or a personal computer (PC). The terminal 300 includes a CPU 301, a ROM 302, a RAM 303, a storage unit 304, a display unit 305, an operation unit 306, and a communication unit 307. Each component included in the terminal 300 can communicate with each other via a bus 308.

[0021] The CPU 301 is a processor that controls the entire terminal 300. The CPU 301 reads the computer programs stored in the ROM 302 and the storage unit 304 into the RAM 303 and executes them, thereby performing various processes by the terminal 300.

[0022] The ROM 302 is a non-volatile memory that stores basic programs such as the OS and initial data. The RAM 303 is a volatile memory used as a storage area for loading programs, a work area for executing programs, and a buffer for temporarily holding data.

[0023] The storage unit 304 is, for example, a hard disk drive or a memory card built in or externally attached to the terminal 300. The storage unit 304 stores computer programs for realizing the functions of the terminal 300.

[0024] The display unit 305 is, for example, a liquid crystal display and an LED display. The display unit 305 displays a user interface or the like for the user to give instructions to the terminal 300. The operation unit 306 receives operations on the terminal 300. The operation unit 306 is an operation member such as a keyboard, a mouse, or a touch panel.

[0025] The communication unit 307 is a communication interface for communicating with external devices such as the server 100 and the terminal 200 via the Internet or the like.

[0026] Figure 3 illustrates the functional configuration of the server 100 and terminal 300 according to Embodiment 1. The server 100 includes a post information acquisition unit 121, a determination unit 122, a notification destination determination unit 123, a notification unit 124, a victim estimation unit 125, and a post information disclosure unit 126. The processing of each functional unit is realized by the CPU 101 executing a program corresponding to each functional unit. The terminal 300 includes a notification receiving unit 321 and a notification forwarding unit 322. The processing of each functional unit is realized by the CPU 301 executing a program corresponding to each functional unit.

[0027] The post information acquisition unit 121 receives posts from multiple users who are users of the SNS. The post information acquisition unit 121 can acquire post information from the poster (the first user). The post information includes the content of the post entered by the poster into the terminal 200. The post information may also include information about a series of conversations (posts) between the poster and other users.

[0028] The determination unit 122 determines whether the posted information acquired by the posted information acquisition unit 121 constitutes defamation. For example, the determination unit 122 determines that the poster's posted information constitutes defamation if the posted information contains predetermined words. The predetermined words are words and phrases that can be considered defamatory. The predetermined words are, for example, stored in the storage unit 104 of the server 100 in advance. The information is stored. Users can register defamatory words and phrases as designated words via the operation unit 106. The term "user" here may refer to either a user of the social networking service (SNS) or an administrator of the SNS.

[0029] Furthermore, the determination unit 122 may use a trained model that has been trained on words and conversations that constitute defamation to determine whether or not the poster's posted information constitutes defamation. Words that constitute defamation are words and phrases that are defamatory. The determination unit 122 can determine whether or not the words included in the posted information constitute defamation by inputting them into the trained model.

[0030] A conversation that constitutes defamation is one in which, based on the interaction between the poster and other users, the poster is recognized as defamating or slandering other users. The determination unit 122 can determine whether or not the input conversation constitutes defamation by inputting a series of conversations between the poster and other users into a trained model.

[0031] Furthermore, the determination unit 122 may determine whether the poster's post constitutes defamation based on the post information of multiple users, including the poster. For example, the determination unit 122 can determine whether the poster's post constitutes defamation by inputting the post information from multiple users into a trained model that has been trained on conversations that constitute defamation. The post information of multiple users (interactions between the poster and other users) may be obtained collectively from the poster's terminal 200, or from each of the multiple users' terminals 200.

[0032] The notification recipient determination unit 123 determines the recipient to whom a prescribed notification will be sent if the poster's posted information constitutes defamation. The notification recipient determination unit 123 can determine the poster's parent user (second user) that has been previously associated with the poster as the notification recipient.

[0033] The notification recipient determination unit 123 may determine the poster's parent user as the notification recipient if the number of times the poster has made defamatory posts exceeds a predetermined number. In other words, the notification recipient determination unit 123 may send a notification to the poster's parent user if the number of times the poster has made defamatory posts exceeds a predetermined number.

[0034] The recipient of the notification is not limited to the poster's parent user. The notification recipient determination unit 123 may determine that the recipient is at least one of the following: the poster themselves, a third-party organization unrelated to the poster, a victim user who is the target of the defamation in the posted information, a user previously associated with the victim user, or a user within a group that can view the posted information. Examples of third-party organizations include bullying counseling services, schools, the police, and the administrators of SNS services.

[0035] The victim user corresponds to the third user. The user pre-associated with the victim user corresponds to the fourth user and will hereafter be referred to as the victim parent user. The victim parent user can be any user who is in the position of guardian of the victim. The victim parent user can be, for example, a user set up by the parental control function to restrict the use of the terminal 200 used by the victim. Information linking the victim and the victim parent user is stored in the storage unit 104.

[0036] The notification recipient determination unit 123 may determine the recipient of the notification based on the number of times the poster has made a post that constitutes defamation. For example, if the poster has made a post that constitutes defamation for the second time, the notification recipient determination unit 123 will determine the poster's parent user (second user) as the recipient of the notification. Furthermore, if the poster has made a post that constitutes defamation for the third time, the notification recipient determination unit 123 will determine the victim's parent user (fourth user) as the recipient of the notification. In such cases, a third-party organization will be designated as the recipient of the notification.

[0037] Furthermore, the notification recipient determination unit 123 may include the poster's parent user as a recipient of notifications even if the post is the third or subsequent instance of defamation. Similarly, the notification recipient determination unit 123 may include the victim's parent user as a recipient of notifications even if the post is the fourth or subsequent instance of defamation. In this way, the notification recipient determination unit 123 can determine multiple recipients of notifications depending on the number of defamatory posts.

[0038] The notification recipient determination unit 123 may determine the recipient of the notification according to the level of defamation in the poster's posted information. The level of defamation can be set, for example, based on the number of defamatory words contained in the posted information, or the level of defamation predetermined for each of the defamatory words.

[0039] For example, if the level of defamation is set to three levels, Level 1, Level 2, and Level 3, the notification recipient determination unit 123 will determine that the notification recipient is the poster's parent user for Level 1. The notification recipient determination unit 123 can also determine that the notification recipient is the victim's parent user for Level 2, and a third-party organization for Level 3.

[0040] However, the method by which the notification recipient determination unit 123 determines the notification recipient is not limited to the examples described above. The notification recipient determination unit 123 may determine the notification recipient by combining the number of posts that constitute defamation and the level of defamation, or it may determine the notification recipient according to the settings of a pre-registered user.

[0041] The notification unit 124 sends a predetermined notification to the recipient determined by the notification recipient determination unit 123. The notification unit 124 may send the predetermined notification by email to the email address of the recipient user. Alternatively, the notification unit 124 may send the predetermined notification to the recipient user's account in the SNS application. In this case, the recipient user can check the predetermined notification within the SNS application.

[0042] The prescribed notification shall include a statement informing the poster that their posted information constitutes defamation. The prescribed notification may also include the content of the posted information. The content of the prescribed notification may differ depending on the recipient, or it may be the same regardless of the recipient.

[0043] The notification to the poster's parent user (corresponding to the first notification) may include, for example, content urging them to stop the poster from making defamatory posts. The notification to the poster themselves (corresponding to the second notification) may include, for example, content urging them to stop making posts that constitute defamation. The notification to a third-party organization (corresponding to the third notification) may include, for example, content urging them to investigate bullying and content urging them to delete posts that constitute defamation.

[0044] The notification to the victim user (corresponding to the fourth notification) may include, for example, content encouraging them to talk to someone about being the target of defamation and bullying. The notification to the victim's parent user (corresponding to the fifth notification) may include, for example, content encouraging them to protect the victim from defamation and bullying.

[0045] Notifications to users within a group who have access to posted information (corresponding to the sixth notification) may include, for example, content urging them to stop the poster from making defamatory posts, and content urging them to protect victims from defamation and bullying.

[0046] The victim estimation unit 125 estimates the victim user based on the poster's posting information. The victim estimation unit 125 can estimate the victim user based, for example, on information indicating the recipient of the posted information. Information indicating the recipient of the posted information includes information about the user specified by the poster as the recipient of the posted information, and information about tags such as hashtags included in the posted information. In addition, the victim estimation unit 125 can also estimate the victim user by taking multiple pieces of posted information as input and using a trained model that has been trained to identify the user who is the target of defamation in those multiple pieces of posted information.

[0047] The victim user (third user) may be able to set whether or not to allow notifications to the victim parent user (fourth user). The notification destination determination unit 123 may select the victim parent user as the notification destination if the victim user has allowed notifications to the victim parent user. That is, the notification unit 124 may send a notification (fifth notification) to the victim parent user if the victim user has allowed notifications to the victim parent user. On the other hand, if the victim user has not allowed notifications to the victim parent user, no notification will be sent to the victim parent user.

[0048] The posting information disclosure unit 126 publishes, for example, the posting information from SNS users obtained by the posting information acquisition unit 121 on the internet. The posting information disclosure unit 126 may also publish the posting information within the application that provides the SNS service. The posting information disclosure unit 126 may also control whether or not to publish a posting information if it is determined that the posting information of a poster constitutes defamation.

[0049] If the posting information of a poster is not made public by the posting information disclosure unit 126, the notification unit 124 notifies the victim user who is the target of the defamation in the posting information that the posting information was not made public because it constitutes defamation. The notification unit 124 notifies the victim user by sending an email or via the SNS application that the posting information was not made public because it constitutes defamation.

[0050] The notification receiving unit 321 of terminal 300 receives a predetermined notification from the notification unit 124. The display unit 305 of terminal 300 displays a notification screen. The notification screen displays a predetermined notification from the server 100. The notification screen may also display the posting information by the poster as is.

[0051] The notification unit 124 may also notify the terminal 300 of information about other notification destinations along with the predetermined notification. The notification screen displayed on the display unit 305 may include a user interface for notifying other notification destinations of the predetermined notification received from the notification unit 124. For example, the notification screen may include a button (hereinafter also referred to as a forwarding button) for notifying other notification destinations, such as a third-party organization, of the predetermined notification.

[0052] The notification forwarding unit 322 forwards a predetermined notification received from the notification unit 124 to another notification destination based on the user's actions. The user can forward a predetermined notification to another notification destination, for example, by operating the forwarding button displayed on the notification screen.

[0053] Figure 4 is a flowchart illustrating the notification process for posts that constitute defamation. The process shown in Figure 4 is initiated, for example, when a poster makes a post to the SNS service provided by server 100.

[0054] In step S401, the post information acquisition unit 121 acquires post information from the poster. The poster can, for example, use an application installed on terminal 200 to post to the SNS service provided by server 100. The post information acquisition unit 121 receives the post information from the poster's terminal 200.

[0055] In step S402, the determination unit 122 determines whether the posted information obtained in step S401 constitutes defamation. For example, the determination unit 122 can determine that the poster's posted information constitutes defamation if the posted information contains a predetermined word. The determination unit 122 can also determine whether the poster's posted information constitutes defamation using a trained model that has been trained on words and conversations that constitute defamation. Furthermore, the determination unit 122 can also determine whether the poster's posted information constitutes defamation based on the posted information of multiple users, including the poster. If the poster's posted information constitutes defamation, the process proceeds to step S403. If the poster's posted information does not constitute defamation, the process shown in Figure 4 ends.

[0056] In step S403, the notification recipient determination unit 123 determines the recipient of a notification if the poster's posted information constitutes defamation. The notification recipient determination unit 123 can determine the poster's parent user (second user) that has been pre-associated with the poster as the notification recipient. However, if the number of times the poster has made posts that constitute defamation is less than or equal to a predetermined number, the notification recipient determination unit 123 may not set a notification recipient and may not send the predetermined notification.

[0057] The notification recipient determination unit 123 may further determine at least one of the following as the notification recipient: the poster themselves, a third-party organization, a victim user, a victim parent user, or a user within a group that can view the posted information. The notification recipient determination unit 123 may set multiple notification recipients.

[0058] In step S404, the notification unit 124 determines whether or not there is a notification destination determined in step S403. If there is a notification destination, the process proceeds to step S405. If there is no notification destination, the process shown in Figure 4 ends.

[0059] In step S405, the notification unit 124 sends a predetermined notification to the recipient determined in step S403. The content of the predetermined notification may be the same regardless of the recipient, or it may differ depending on the recipient. The notification unit 124 sends the notification, for example, by sending an email to the email address of the recipient user. Alternatively, the notification unit 124 may send the predetermined notification to the recipient user's account in the SNS application.

[0060] According to Embodiment 1 described above, if a post that constitutes defamation is made, the server 100 can notify the poster's parent user, who is pre-associated with the poster, of information regarding the post. Furthermore, the server 100 notifies the appropriate recipient of information regarding the post, depending on the number of times the poster has made defamatory posts and the level of defamation in the posted information. In this way, the server 100 can notify the appropriate recipient of information regarding a post that could lead to bullying on social media. The user who receives the notification can understand the possibility that the poster is a perpetrator of bullying and can stop the poster's actions.

[0061] <Embodiment 2> In Embodiment 1, the server 100 determines whether the posted information constitutes defamation and sends a predetermined notification to the determined recipient. In contrast, in Embodiment 2, the poster's terminal 200 determines whether the posted information constitutes defamation and sends a predetermined notification to the determined recipient.

[0062] Figure 5 is a diagram illustrating the configuration of a notification system according to Embodiment 2. The notification system according to Embodiment 2 includes a server 100, a terminal 200, and a terminal 300. The server 100 according to Embodiment 2 provides SNS services and accepts posts from posters (first users). In Embodiment 2, notifications to the poster's parent user (second user) are made not by the server 100, but by the poster's terminal 200. The terminal 200 according to Embodiment 2 is an example of an information processing device according to the present invention.

[0063] Terminal 200 is a terminal used by the poster to make posts to the social networking service (SNS). Terminal 200 determines whether the content of the poster's post constitutes defamation or libel. Based on the determination result, Terminal 200 sends a notification regarding the poster's post to a user (second user) that has been pre-associated with the poster. Terminal 300 is the same as in Embodiment 1, so its description is omitted.

[0064] The hardware configurations of server 100, terminal 200, and terminal 300 are the same as in Embodiment 1. Note that the storage unit 104 of server 100 does not need to store information such as the association between the poster and the poster's parent user. On the other hand, the storage unit of terminal 200 (with a configuration corresponding to the storage unit 304 of terminal 300) stores user information pre-associated with posters from terminal 200. The storage unit of terminal 200 stores information used to provide predetermined notifications regarding poster information from terminal 200.

[0065] In Embodiment 2, the server 100 only needs to have a post information acquisition unit 121 and a post information disclosure unit 126. The post information acquisition unit 121 receives posts from SNS users. The post information disclosure unit 126 makes public the post information from SNS users acquired by the post information acquisition unit 121.

[0066] Figure 6 illustrates the functional configurations of terminals 200 and 300 according to Embodiment 2. Terminal 200, like server 100 according to Embodiment 1, has a posting information acquisition unit 221, a determination unit 222, a notification destination determination unit 223, a notification unit 224, and a victim estimation unit 225. The posting information acquisition unit 221 acquires posting information from posters who post from terminal 200. The processing of the determination unit 222, notification destination determination unit 223, notification unit 224, and victim estimation unit 225 is the same as the processing of the determination unit 122, notification destination determination unit 123, notification unit 124, and victim estimation unit 125 of server 100 according to Embodiment 1. The functional configuration of terminal 300 is the same as in Embodiment 1, so its description is omitted.

[0067] The notification process flow for sending a predetermined notification from terminal 200 to terminal 300 is the same as the notification process flow shown in Figure 4. The processes executed by the post information acquisition unit 121, the determination unit 122, the notification destination determination unit 123, the notification unit 124, and the victim estimation unit 125 are respectively executed by the post information acquisition unit 221, the determination unit 222, the notification destination determination unit 223, the notification unit 224, and the victim estimation unit 225 of terminal 200.

[0068] According to Embodiment 2 described above, if a post constituting defamation is made from terminal 200, terminal 200 can notify the poster's parent user, who is pre-associated with the poster, of information regarding the post. Furthermore, terminal 200, similar to server 100 in Embodiment 1, notifies the appropriate recipient of information regarding the post based on the number of times the poster has made defamatory posts and the level of defamation in the posted information. In this way, terminal 200 can notify the appropriate recipient of information regarding a post made by a poster that could lead to bullying. The user who receives the notification can understand the possibility that the poster is engaging in bullying as an aggressor and can stop the poster's actions.

[0069] The various controls described above may or may not be performed by a single piece of hardware (e.g., a processor or circuit). Multiple pieces of hardware (e.g., multiple processors, multiple circuits, or a combination of one or more processors and one or more circuits) may share the processing to control the entire device.

[0070] Furthermore, the above-mentioned processors are processors in a broad sense, and include general-purpose processors and specialized processors. General-purpose processors include, for example, CPUs (Central Processors). Examples include a GPU (Micro Processing Unit), an MPU (Micro Processing Unit), and a DSP (Digital Signal Processor). Dedicated processors include, for example, a GPU (Graphics Processing Unit), an ASIC (Application Specific Integrated Circuit), and a PLD (Programmable Logic Device). Programmable logic devices include, for example, an FPGA (Field Programmable Gate Array) and a CPLD (Complex Programmable Logic Device).

[0071] Furthermore, the embodiments described above (including modified examples) are merely examples, and configurations obtained by appropriately modifying or changing the above-described configurations within the scope of the gist of the present invention are also included in the present invention. Configurations obtained by appropriately combining the above-described configurations are also included in the present invention.

[0072] <Other Embodiments> The present invention can also be realized by supplying a program that implements one or more of the functions of the above-described embodiments to a system or device via a network or storage medium, and by having one or more processors in the computer of that system or device read and execute the program. It can also be realized by a circuit that implements one or more functions.

[0073] This embodiment includes the following configurations, methods, and programs. (Composition 1) A means for obtaining the posting information of the first user, A determination means for determining whether the information posted by the first user constitutes defamation, Based on the determination result by the determination means, a notification means provides a first notification to a second user who is pre-associated with the first user. An information processing device characterized by having the following features. (Configuration 2) The determination means determines that the first user's posted information constitutes defamation if the posted information contains predetermined words. The information processing device according to configuration 1, characterized by the above. (Composition 3) The determination means uses a trained model that has been trained on words and conversations that constitute defamation to determine whether or not the information posted by the first user constitutes defamation. The information processing device according to configuration 1, characterized by the above. (Composition 4) The notification means will give the first notification if the number of times the first user has made a post that constitutes defamation exceeds a predetermined number. An information processing device according to any one of configurations 1 to 3, characterized by the above. (Composition 5) The second user is a user configured by the parental control feature to restrict the use of the device used by the first user. An information processing device according to any one of configurations 1 to 4, characterized by the above. (Composition 6) The notification means further provides a second notification to the first user. An information processing device according to any one of configurations 1 to 5, characterized by the above. (Composition 7) The notification means further makes a third notification to a third-party organization that is not associated with the first user. An information processing device according to any one of configurations 1 to 6, characterized by the above. (Composition 8) The notification means further provides a fourth notification to a third user who is the target of the defamation in the first user's posted information. An information processing device according to any one of configurations 1 to 7, characterized by the above. (Composition 9) The system further comprises estimation means for estimating the third user. The information processing apparatus according to configuration 8, characterized by the above. (Composition 10) The estimation means estimates the third user based on information indicating the destination of the first user's posted information. The information processing apparatus according to configuration 9, characterized by the features described therein. (Composition 11) The estimation means estimates the third user using a trained model that has been trained to identify the user who is the target of defamation in the multiple posts by inputting multiple posts. The information processing apparatus according to configuration 9, characterized by the features described therein. (Composition 12) The notification means further sends a fifth notification to a fourth user who is previously associated with the third user who is the target of the defamation in the first user's posted information. An information processing device according to any one of configurations 1 to 11, characterized by the above. (Composition 13) The third user can configure whether or not to allow the fourth user to receive the fifth notification. The notification means will give the fifth notification to the fourth user if the third user has given permission for the fourth user to receive the fifth notification. The information processing device according to configuration 12, characterized by the features described herein. (Composition 14) The notification means further provides a sixth notification to users in the group who are able to view the first user's posted information. An information processing device according to any one of configurations 1 to 13, characterized by the above. (Composition 15) The notification means determines the recipient of the notification based on the number of times the first user has made a post that constitutes defamation. An information processing device according to any one of configurations 1 to 14, characterized by the above. (Composition 16) The notification means determines the recipient of the notification according to the level of defamation in the information posted by the first user. An information processing device according to any one of configurations 1 to 15, characterized by the above. (Composition 17) The notification by the notification means includes the content of the information posted by the first user. An information processing device according to any one of configurations 1 to 16, characterized by the above. (Composition 18) The notification screen that displays the notification from the notification means includes a user interface for notifying other recipients of the notification from the notification means. An information processing device according to any one of configurations 1 to 17, characterized by the above. (Composition 19) The system further includes a storage unit that stores the first user and the second user in association. An information processing device according to any one of configurations 1 to 18, characterized by the above. (Composition 20) The aforementioned information processing device is a server that accepts posts from multiple users. An information processing device according to any one of configurations 1 to 19, characterized by the above. (Composition 21) The determination means determines, based on the posted information of the multiple users, including the first user, whether or not the posted information of the first user constitutes defamation. The information processing apparatus according to configuration 20, characterized by the features described herein. (Composition 22) The system further includes a means for publishing posted information from the aforementioned multiple users, The aforementioned disclosure means controls the disclosure of information posted by the first user if it is determined that the information is defamatory, by preventing the posting of the information that has been determined to be defamatory from being made public. An information processing apparatus according to configuration 20 or 21, characterized by the above. (Composition 23) The notification means, if the posting information of the first user is not made public, notifies the third user who is the target of the defamation in the posting information of the first user that the posting information of the first user was not made public because it constitutes defamation. An information processing device according to any one of configurations 20 to 22, characterized by the above. (method) The first step is to retrieve the posted information of the first user, A determination step to determine whether the information posted by the first user constitutes defamation, Based on the determination result in the determination step, a notification step is performed to send a first notification to a second user who has been previously associated with the first user. An information processing method characterized by having the following features. (program) A program for causing a computer to function as one of the means of the information processing device described in any of configurations 1 to 23. [Explanation of Symbols]

[0074] 100: Server (information processing unit), 101: CPU, 121: Post information acquisition unit, 122: Judgment unit, 124: Notification unit 200: Terminal (information processing device), 301: CPU, 221: Posting information acquisition unit, 222: Determination unit, 224: Notification unit

Claims

1. A means for obtaining the posting information of the first user, A determination means for determining whether the information posted by the first user constitutes defamation, Based on the determination result by the determination means, a notification means provides a first notification to a second user who is pre-associated with the first user. An information processing device characterized by having the following features.

2. The determination means determines that the first user's posted information constitutes defamation if the posted information contains predetermined words. The information processing apparatus according to feature 1.

3. The determination means uses a trained model that has been trained on words and conversations that constitute defamation to determine whether or not the information posted by the first user constitutes defamation. The information processing apparatus according to feature 1.

4. The notification means will give the first notification if the number of times the first user has made a post that constitutes defamation exceeds a predetermined number. The information processing apparatus according to feature 1.

5. The second user is a user configured by the parental control function to restrict the use of the device used by the first user. The information processing apparatus according to feature 1.

6. The notification means further provides a second notification to the first user. The information processing apparatus according to feature 1.

7. The notification means further makes a third notification to a third-party organization that is not associated with the first user. The information processing apparatus according to feature 1.

8. The notification means further provides a fourth notification to a third user who is the target of defamation in the first user's posted information. The information processing apparatus according to feature 1.

9. The system further comprises estimation means for estimating the third user. The information processing apparatus according to feature 8.

10. The estimation means estimates the third user based on information indicating the destination of the first user's posted information. The information processing apparatus according to feature 9.

11. The estimation means estimates the third user using a trained model that has been trained to identify the user who is the target of defamation in the multiple posts by inputting multiple posts. The information processing apparatus according to feature 9.

12. The notification means further sends a fifth notification to a fourth user who is previously associated with the third user who is the target of the defamation in the first user's posted information. The information processing apparatus according to feature 1.

13. The third user can set whether or not to allow the fourth user to receive the fifth notification. The notification means will give the fifth notification to the fourth user if the third user has given permission for the fourth user to receive the fifth notification. The information processing apparatus according to feature 12.

14. The notification means further provides a sixth notification to users in the group who are able to view the first user's posted information. The information processing apparatus according to feature 1.

15. The notification means determines the recipient of the notification based on the number of times the first user has made a post that constitutes defamation. The information processing apparatus according to feature 1.

16. The notification means determines the recipient of the notification according to the level of defamation in the information posted by the first user. The information processing apparatus according to feature 1.

17. The notification by the notification means includes the content of the information posted by the first user. The information processing apparatus according to feature 1.

18. The notification screen that displays the notification from the notification means includes a user interface for notifying other recipients of the notification from the notification means. The information processing apparatus according to feature 1.

19. The system further includes a storage unit that stores the first user and the second user in association. The information processing apparatus according to feature 1.

20. The aforementioned information processing device is a server that accepts posts from multiple users. The information processing apparatus according to feature 1.

21. The determination means determines, based on the posted information of the multiple users, including the first user, whether or not the posted information of the first user constitutes defamation. The information processing apparatus according to claim 20.

22. The system further includes a means for publishing posted information from the aforementioned multiple users, The aforementioned disclosure means controls the disclosure of information posted by the first user if it is determined that the information is defamatory, by preventing the posting of the information that has been determined to be defamatory from being made public. The information processing apparatus according to claim 20.

23. The notification means, in the event that the first user's posted information is not made public, notifies the third user who is the target of the defamation in the first user's posted information that the first user's posted information was not made public because it constitutes defamation. The information processing apparatus according to claim 20.

24. The first step is to obtain the user's posted information, A determination step to determine whether the information posted by the first user constitutes defamation, Based on the determination result in the determination step, a notification step is performed to a second user who has been previously associated with the first user. An information processing method characterized by having the following features.

25. A program for causing a computer to function as one of the means of an information processing apparatus described in any one of claims 1 to 23.

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